Box-making machine.



C. BURNHAM.

BOX MAKING MACHINE.

APPLICATION FILED JUNE 22,1915.

1,252,545. Patented Jan. 8,1918. D 4 SHEETSSHEET l.

[i l 1 b attozmcqa/ C. BURNHAM.

BOX MAKING MACHINE.

APPLICATION FILED JUNE 22.1915.

Patented Jan. 8,1918.

4 SHEETSSHEET 3 7a 94 l l i v 5] wve/n/boz Mm mm C. BURNHAM. I

BOX MAKING MACHINE.

APPLICATION FILED JUNE 22.1915. 125,545., Patented Jan. 8,1918.

4. 9 4SHEETS SHEE an adjustable two-part an s PATENT canton.

CHARLES BURNHAIVI, 0]? LOS ANGELES, CALIFORNIA, ASS IGNOR T0 BURNI-IAIVI BASKET COMPANY, A CORPORATION OF CALIFORNIA. i

BOX-MAKING MACHINE.

Specification of Letters Patent.

Patented Jan. 8,1918.

Application filed June 22, 1915; Serial No. 35,702.

tain new and useful Improvements in BoX- Making Machines, of which the following is a. full, clear, and exact description.

This invention relates more particularly to the mechanism for bending metal strips to form a binding for fruit and berry boxes or baskets.

One of the principal objects of the invention is to provide simple and efficient means adapted to receive a thin narrow metal strip or strips at either or both sides thereof and to fold said strips about an anvil or former to form a binding for the body of the baskets or boxes.

Another object of the invention is to provide simple and efiicient means whereby the parts will register properly, and to provide frame on which the folding mechanism may be mounted.

A further object of the invention is to provide simple and eliicient means which will permit narrow strips folded lengthwise to be fed from opposite sides of the folding mechanism and by said mechanism moved against a substantially rectangular anvil or former and folded about said former on all sides thereof for the reception of the edge of the box body. I

the movement of the metal binding as it is i the line forced about the anvil by other of the folding jaws.

' invention will be hereinafter more particu- A still further object of the invention is V larly described with reference to the accompanylng drawings, which form a part of this specification, and will then be pointed put in the claims at the end of the descripion.

In the drawings, Figure '1 is a sectional plan view of one form of folding mechanism embodying my invention. 7

Fig. 2 is an end elevation, partly in section, showing one-member of the two-part supporting frame, and the cutting means at one side of the machine.

Fig. 3 is a transverse section taken on the line IIIIII of Fig. 1, the anvil being omitted andthe'rear portions of the machine being broken away. 7

Fig. 4 is a front elevation, partly broken away, looking from'the lapper side of the folding mechanism.

Fig. 5 is a vertical section taken on the line VV of Fig. 1, the anvil being omitted and other parts broken away for the sake of clearness.

Fig. 6 is an enlarged fragmentary sectional plan showing apart of the anvil and one of the lapper jaws in its normal position.

Fig. 7 is a fragmentary vertical section taken on the line VII-VII of Fig. 6.

Fig. 8 is a front view of the mechanism shown in Figs. 6 and"? looking into the mouth or. face of the folding lapper jaw.

Fig. 9 is a plan view similar to Fig. 6 showing the opposite lapper jaw in its normal position. i

Fig. 10 is a vertical section taken on the line X-X of Fig. 9.

Fig. 11 is an enlarged front view looking into the mouth of the lapper jaw shown in Fig. 10.

Fig. 12 is an enlarged vertical section through one of the initial folding jaws showing the retaining shutter in position, the section being taken on the line XII-'XII of Fig. 1.

Fig. 13 is an enlarged vertical section on of the retaining fingers for holding the binding in the initial folding jaws during the movement of the jaws toward the anvil.

Fi 14 is an enlarged sectional plan of the dznter bar ofthe initial folding means showing one means whereby the ends of two strips 'whencfed from opposite sides of the XIII-XIII of Fig. 1 through one i machine may be made to overlap, the section being taken on. the line; XI V'-XIV of Fig. 15;and"

Fig. 15 is a section taken on the line XV'XV of- Fig; 14".-

While the invention shown isapplied to a particular form of machine such as disclosed in my Patent No. 1,154,610- issued September 28, 1915, it will be understood that many of thefeatures may be used in" I term forming mechanism, that isthemetal,

is bent or formed lengthwise; thereof so as. to be substantially Vw-shapeds or- U-shaped in crosssection in order to fit. over the edge of the. box form. This strip isfed inward and tilted and after being tilted: so, that it will assume a; proper position; relative to the edges of the-box and? the anvil or'former, about which it is bent according to the shape of the box, the stripv is: then cut off the proper length. The strip is then fed forward on: one side of. a substantially rectangular anvil having a shape corresponding to the shape of the open end of the box and: until the: said strip meets the anvil, when the jaws into-which the striphas been previously fed by engagement with the former or anvil will bend both ends of the strip on: opposite sides: thereof making the samesubstantially U-shapedi A. second pair of jaws engagesthefree ends of thebinding 'strip and forces: the same on the. remaining side of the anvil; andicausesone end of the strip to overlap the other. The-'shooks of: which the box body is madeare placed in 1 two magazines located adjacent to one end ofthe'machine, and"theseshooks are auto.- matically-fed"upward' inposition to be re-- moved therefrom. A reciprocatory and 1'0?- tarypneumatic d'ev-icezis provided for this purpose and this device; is automatically controlled i sothat' thesliookswill I be picked upfirst from one magazine and then from the other so that the shocks; as thus picked up will lie or'osswi'se and? at substantially right angles to e za :h other.. The pneumaticdevices discharge the crossed shooks. into a.

rotary/carrier (an-turret;- A movement is: given to thecarrier andthis: places the crossed shocks in: the .pa-tliof box-making mechanism, and at? the; proper." time thismechanism-operates to form: tli9-jSlIOOkS 1DtO- boxform 1 and carries:- the BOX-r fromraboye. 1

pleted box is forced out of the carrier into a chute and properly stacked and may be removed in any desired way. This is the character of machine disclosed in the application referred to. Broadly the metal binding, folding or bending mechanism shown in the present application is constructedto'adapt metal strips to be fed end wise from both sides and there are two out ting off mechanisms when the strips are long, though it is intended that the invention may be used. when the metal binding strip or strips are fed from one side only of the folding mechanism and each binding consists of a single piece instead'ofa plurality of pieces.

The frame of the machine may have a drop head bracket or support 10 of any desired construction fastened in any suitable manner (not shown) to a fixture and supported by said bracket are folder frame members or brackets 11 and 12. These frame members 11 and 12 have a substantially T-shaped slot 13 along the upper edge thereof and adapted to fit into each slot is a bar 14. The bar 14L- is adapted to be engagedby the threaded ends of two or more bolts 15 and by said bolts 15 and bars 14 the said frame members 11 and 12.may be adjustably orotl'ierwise held to they supporting member 10. At each lower inner edge or face of the members 11 and 12 are guides 16. These guides are opposed to eachother and adapted. to reciprocate transversely of the machine is a folder cross-head v17. cross-head 17 carries the initial folding jaws l8 and 19 each ofwhich is pivoted, at20, to a center bar or member 21. and 1.9. and bar 21 in their normal position 'arein alinement and both the jaws and the .jawsplfizandllfi.extend. in oppositedi e ti ns This The jaws 18v from the center member 21 and are adapted to reciprocate with said member 21 and with the cross-head 17, and during the reciprocatory movement of the cross-head, the member 21 is adapted. to move against the side 24 of ananvil or former 25. This anvil or former is substantially rectangular in form having sides 25 and a fourth side 25 in addition to the side 24, and said anvil has corner pieces 26 and parts 27 at the corners forming sockets which are adapted to be engaged by recessed portions 27 located above the pivot 20 of the jaws 18 and 19. As the cross-head 17 continues to move after the member 21 engages the side 24 of the anvil, the engagement of the recessed or socket portions 27 with the parts or posts-27 will cause the jaws 18 and 19 to swing about the sides 25 of said anvil. The jaws 18 and 19 are pivoted, at 28, to levers 29. These levers 29 are pivoted, at 30, to a part of the crosshead 17. The levers 29 at their outer portions are provided with guide flanges 32 which are adapted to be engaged by rollers 33 held upon the ends of adjustable bars or plates 34, the latter being held to the frame members 11 and 12 by means of bolts 35 and by set screws 36, the said rollers serving as guide means for the levers 29 during the reciprocation of the cross-head 17 A lug or pin 37 extends outwardly from each aw 18 and 19 and connected to said pin is one end of a spring 38, the other end of said spring being connected to the outer end of a bracket 39 secured to a part of the cross-head 17 and serving normally to hold each of the jaws 18 and 19 when in their normal position in alinement with the center member '21 and so that the back of each jaw will rest and abut against a stop 40 formed as a part of each lever 29.

It will be evident that as the cross-head 17 is moved toward the anvil or former 25, the sockets 27 at the pivots 20 of the jaws will engage the socket pieces 27 of the anvil and as the cross-head continues to move for ward, the member 21 will remain against the side 24 of the anvil 25 and the jaws 18 and 19 will move about the opposite sides 25 and at right angles to the member 21 so as to fold the strip or strips carried thereby about the two sides 25* of the anvil 25. During the swinging movement of the jaws 18 and 19, the lever members 29 will move on their pivots against the tension of the springs 38, this connection being necessary because of the arc of movement of the pivots 28. As the cross-head moves backward to its normal position, the member 21 as well as the jaws 18 and 19 will also be moved backward and owing to the tension of the springs will be restored to alinement. At the extreme back movement of the member 21, a substantially U-shaped part 41 held to the center member 21 will engage a stop 42. This stop 42 is in the form of a screw which is adjustably held to the lower end of an arm or bracket 43 extending downward from the main supporting frame or bracket 10, the purpose of said stop being to assist in alining the member 21 with respect to the jaws 18 and 19 for the reception of the metal binding strips to be bent. Stops 41 in the form of bolts may also be provided to engage parts of the cross-head 17 when in its extreme backward position.

The cross-head 17 may be reciprocated in any desired way. It may be timed with respect to other parts of the machine if the mechanism is to be used in connection with a machine partly or wholly automatic. Only a part of such mechanism is shown. This mechanism may comprise rods 42 and 48 which are pivoted, at 44, to lugs or other parts of the cross-head 17 and at their outer ends the rods 42 and 43 may each have a head 45 to which is pivoted, at 46, one end of rocking levers 47. The compression rods 42 and 43 may have a compression washer 46 on each rod and on each side of the rubber washer is a steel washer, one washer resting against the forward end of the head 45 and the other against the two lock nuts 46, and inside each head or block 45 is a compression spring and two round lock nuts, which latter it was not thought necessary to illustrate. When the levers 47 are moved they will positively force the cross-head 17 with the jaws 18 and 19 toward and from the anvil 25.

Each metal binding when completed may be made of a single strip of metal or a plurality of strips. If the strip consists of a single piece or a plurality of pieces, it is fed endwise from one side of the machine entering either one of the jaws 18 and 19 endwise thereof so as to extend on opposite sides of said jaws. If the binding comprises two strips for example, the separate strips may be fed in any desired way from opposite sides of the mechanism so that one strip will enter endwise the jaw 19 and the other strip enter endwise the jaw 18 so that they will slightly overlap at the center of the center member 21. At this time and before the cross-head 17 is reciprocated, the strip or strips are held in the jaws against displacement by means of a shutter 48. This shutter 48 is in the form of a beam and is arranged over and in parallel relation with the jaws 18 and 19. The shutter 48 has a lip portion 49 which is adapted to cover the front or open portion of the groove 23 extending along the face of the jaws and the center member 21 and at its ends is pivoted, at 50, to lugs or bosses on the folder frame members 11 and 12. This shutter is operatively connected to one or more arms 51, the outer ends of which are connected to a rod 52 so that on the operation of said rod 52, the

' shutter may be moved on its pivot and be free of the jaws 18 and 19 and center bar, 21. The shutter is moved just prior to the reciprocatory movement of the cross-head 17 anddoes not partake of such reciprocatory movement. A pair of fingers 53, one for eachrjaw, is adapted to hold the strip or strips in the jaws 18 and 19 during the re ciprocatory. movement of the cross-head 17 and until the jaws move about the anvil 25. These fingers 53 extend vertically and are pivoted, at 54, to a part of the crosshead and move therewith. The fingers 53 are each normally forced in one direction to hold the strips in the grooves of the jaws by means of a spring 55 arranged around a rod 55 one end of which rod is pivotally attached to one end of the finger and the other end of said rod passes through an opening in a lug 56 in the crosshead 17. As-the cross-head is moved forward and just before the jaws 18 and 19 move on their pivots to force the binding about the two sides 25 of the anvil 25, the said fingers are released by engagement of the lower end thereof with a cam portion 57 of fixed brackets 58 secured to the frame members 11 and 12 on opposite sides of the anvil 25.

As the metal binding is forced about the anvil, the free ends of the binding on opposite sides of the anvil 25 during the swinging movements of the jaws 18 and 19, pass over curved guides 59 on opposite sides of the anvil and over a fixed projecting member 60 which forms a continuation of each guide 59, said member 60 having an inwardly projecting part which overlaps a part of the lapper mechanism in such a way as to pre vent the said mechanism from interfering with the free swinging movement of the free ends of the binding metal. The lapper mechanism comprises two oppositely movable sections 61 and 62 which are opposed to each other and move at right angles to the direction of movement of the'cross-head 17 and are adapted to force the free ends of the metal binding about the remaining side 25 of the anvil 25 and to cause said ends of the binding to overlap. Except for the con struction of the bending jaws of the lapper mechanism sections 61 and 62, they are substantially identical in construction and operate in substantially the same manner and the description of one will answer for the description of the other except as to the special construction of the jaws which will be referred to later. The jaw 63 of the lapper section or mechanism 61 has a socket portion 64 which is adapted to engage a socket pin or par-665 on the anvil 25 to move about the same when forced inwardly. Thisjaw 63 is provided with a grooved bar 66 whcih is adapted to receive the free end of the strip ormetal binding which has been forced around-theanvil by the jaw'l9; The jaw 63 is pivoted, at 67, tov a pivotally held mem-.

ber 68 and is held at substantially right angles to its direction of reciprocatory movement and with respect to themember 68 by a spring 69, one end of said spring being held toone end of a projectino arm 70 and the other end of said spring eing held to a link 71 on the jaw 63. The member 68 is pivotally held, at 72, to a rocking supporting member 73. This member 73 is held to rock on a horizontally arranged stud sion spring 7 8, one end of which is held to a lug 79 on the rocking member 73 and the other end to an adjustable nut orpart 80 and by which the tension of the springv 78 may be varied. An arm 81 extends out wardly from and forms a part of the member 73 and said arm is provided with a trundle which is adaptedto enter a cam groove 82 in a block or fixed part 83. The normal position of the jaw 63 is that shown in the drawings. The arm 81 is caused to tilt the member 73 and jaw 63 to the position shown in order that the free end of the strip while be- 7 mg forced about the anvil-by the jaw 19,

may pass over the guiding ledges 59 and 60 in advance of the jaw 63 so that when the slide 75 is advanced, the trundle in passing along the cam groove 82, will raise the jaw 63 to a substantially horizontal position and 1n alinement with the free end of the metal binding or strip so that said binding or strip may enter the groove 66 of said jaw and be carried by the jaw as the latter with its slide 75 is forced inward. As soon as the socket portion 64 engag'esthe socket pin or part 65 of the anvil 25, the jaw 63 will swing about theanvil 25. Owing to'the arc of movement of the pivot 67 of the jaw and the connection between the said pivot and the pivot 72, the tooth 76 will be moved away from the lug or projection 77 against the tension of the spring 78, and during the continued inward movement of the jaw and the slide 75 will force the bindingmetal about the remaining side of the anvil 25, the spring 69 serving to keep the socket 64 in engagement with the part 65' on theanviland to return the jaw 63 to its normal position. The slide 7 5'may be of any suitable construction and is properly guided in the framememhers 11 and 12-and may be providediwith a transversely extending pin or stud 84 to which a rod .85is connected, said rod'85 being. operated-by a cam or inany other suitable manner andtimed with relation to the movement of the jaws 18 and 19..

The construction of; thesection or mechae nism 62 differs from the section 61 and from that described only in one feature. The jaw 86 of said-mechanism has a pivotally held part or member 87 by which the end of the metal binding operatedon by said jaw during the reciprocatory movement of the slide 75 of said mechanism is adapted to move the strip downward far enough to pass under the previously bent strip end in order that the two ends may overlap and thus form a substantially continuous rectangular binding about the anvil 25. The jaw 86 hasa socket piece 88 adapted to engage a pin or socket part 89 of the anvil 25 similar to the socket portion 64 of the jaw 63 and has the movable member or part 87 pivotally held thereto, as at 90, under said socket piece 88. The jaw member 87 is provided with a grooved bar 91 for the reception of the metal strip or binding. At its outer end the member 87 has a lug 91 which is adapted to span a stud or bolt 92 extending downward from the jaw 86. A spring 93 is arranged around the rod or stud 92 and at the lower end of said stud is a nut 94 by which the tension of the spring 93 may be varied. The member 87 has a tongue-andgroove connection, as at 95, with the jaw 86 and is adapted to have its outer end forced downward during the reciprocatory movement of the jaw 86 with its slide 7 5 against the tension of the spring 93 and when again freed, the spring 93 will force the member 87 upward again so as to carry the free end of the strip as it is bent about the remaining side of the anvil 25 under the free end of the strip which has been bent about the anvil by th jaw 63. This downward movement of the member 87 may be accomplished by means of a cam portion 96, Fig. 1, which is carried by a part of the clencher mechanism, not shown, and which forms no part of this invention. This cam 96 is normally in the path of the reciprocatory movement of the slide 75 and a part of the movable member 87 of the jaw 86 during its swinging action devices 97 usually two,

about the anvil 25 and serves during the swinging movement of the jaw 86 about the anvil to force the member 87 relatively to the rest of the jaw and to carry the binding strip therewith. After the binding has been bent about the anvil 25 and the free ends made to overlap, the said overlapped ends of the binding may be engaged by one or more one of which at least is in the form of a movable hook and both of which are carried by the anvil or otherwise to hold the binding in position to receive the box body which may be formed in substantially the same manner as disclosed in the patent referred toor in any other desired way.

The strips forming the metal binding may be fed automatically either in the form of a long strip which would have to be cut oil the proper length or in the form of strips of the desired length and said strips may be fed from one side of the machine if of a. length to form a complete binding or from opposite sides of the machine if the complete binding when made is to comprise two strips or sections. When the strips are fed as long strips which have been bent substantially U-shaped in crosssection and from opposite sides of the machine, cutting mechanisms, as 98, Figs. 1 and 2, may be provided. As shown, there is a mechanism 98 mounted on each of the supporting frame members 11 and 12 and each mechanism is similarly constructed. The folded metal is fed into the machine at an angle so that one side, that is the side next adjacent to the anvil, will be substantially vertical, the metal having been tilted by rolls or in any other desired way for this purpose. Each mechanism 98 has a head 99 carrying one cutter member and a head or arm 100 carrying another cutter member. These heads or arms 99 and 100 are pivoted, at 101, to a lug or lugs extending upwardly from a frame member 102, the latter being held by bolts 103 or otherwise to the under surface of each of the frame members 11 and 12. The arm 99 is connected to an arm 104 and the cutter arm 100 to an arm 105, each thereby forming a bell-crank member. The arms 104 and 105 are connected by links 106 to a vertically reciprocatory rod 107 forming with the links a toggle joint connection. As the rod 107 is reciprocated by a cam or otherwise, the cutter arms 99 and 100 are forced toward each other and will sever the metal binding, the said arms 99 and 100 being also provided with means, if desired, whereby one ofthe ends only of the metal strip may be reformed by expanding or narrowing to fit over or inside of the other end in order that When the ends overlap, the overlapped portions may lie substantially flush. The cutting mechanism is not shown in detail bein substantially the same as disclosed in my atent No. 1,119,340, dated December 1, 1914, and may be of any desired construction.

The construction and operation of the invention will be readily understood from the foregoing description when taken in connection with the accompanying drawings. The metal binding in the form of a strip or strips having been fed into the jaws 18 and 19 and the cross-head 17 reciprocated, the metal binding will be carried by the jaws 18 and 19 These and 86 are given a reciprocatory movement toward the anvil one slightly in advance of the other and during such reciprocatory movement the binding will be bent about the remaining side of the anvil and one end of the binding made to overlap the other as already described.

The ends of the binding 23 when fed from opposite sides of the machine have their inner ends made to overlap, and if reformed only one of the overlapped ends is thus shaped. As one means, Figs. lt and 15, the'guide'groove in the center bar 21is made somewhat higher for one piece of the binding than for the other piece, The purpose of this is to cause one end of one piece of the binding'substantially central of the bar 21 to be raised far enough above the other end to be guided into said end of the other piece of binding to cause the ends to overlap without liability of the ends striking against each other; Any other means than that shown may be employed to cause the inner endsof the binding to overlap. The binding while in the central bar 21 may be held during the reciprocation of the cross head 17 toward the anvil by a pivoted hook or linger 108, Fig. 1, which may be released by a cam on one ofthe clencher jaws, the shutter bar 418 being constructed or cut away so as not to interfere with said finger. A hook 109 is provided on the anvil to 'engage the overlapped" ends of the binding-and the anvil is cutaway at 109 to permit the finger 108 to move, with the cross-head 17 and until "the ,binding'rests against the side of the anvil.

Thefing r 0s and the hooks 97 ana oe may besubstantially the same construction and operation as those disclosed in my application Sr. No. 15,252, filed March 18, 1915, being adaptedto hold the binding while the cross-head 17 is being reciprocated, after whichthey are moved to'release said bind m T romthe foregoing, it will be evident that effective means is provided whereby a metal binding for fruitbaskets or boxes may be made from a'single strip ora plurality of strips; that simple means is provided whereby the action of the folding jaws may be positively controlled; that simple means is provided for mounting and supporting the folding mechanism to adapt the latter to be adjusted or removed from otherparts ofthe machine and that the mechanism described herein is adapted for use in chnnection with various forms of boX or basket making machines. V I 1 Havingithusdescribed my invention, I claim as new and desire Patent I V k j A 1.' In a box-makingmachine', the combinationof a rectangular anvil, a recipr'ocatory e ress-head, two jaw'sfpivotally mounted on i i saidcross-head and adapted with'said'cr'ossto secure by Letters tee-2545 head fto raeeman "binding about three sides of the anvil,-cutt ing mechanism -arranged on oppositeisides of the jaws,means for initially holdingthe metal binding in said j aws, pivotally' held. fingers -movable with the-jaws and adapted to hold the blndf ing in the jaws during the reciprocatory movement thereof,means for automatically releasing the fingers,-and lapper mechanism havingtwo jaws movable toward and from each other fand'at right angles to 'the'fmo ve ment of the first-mentioned jaws and-adapted" to bend the" metal binding on-the remain ing side of-the anvil, oneot said being providedwith a member having an'up-anddown' movement" adapted'to cause' the ends of the binding metal :to overlaps 2. In a bo mak ing' machine, the combination of afrec'tangular anvil, a recipirocatory cross-head, two jaws momi-ted on said crosshead and adapted to "force metal binding abouta part of the anvil; cutting mechanism, means whereby metal binding stripsmay be fed endwise into the jaws to be held thereby, meansfor initially holding the metal binding insa'id jaws, pivotally helclfing'ersmovable'with-the aws and adapted-to hold the binding in the jaws during thereciprocatory movement thereof, means for automatically releasing I the fingers, and lapper mechanism having two jaws movable toward and from each other at right angles to the movement of the first-mentionedjawsa'nd adapted'xto bend the met'al bindingabout the rest of theanvil, one of said aws being provided with a member f having 1 an up and-down movement adapted'to ca i'se' 'the ends of the binding metal to overlap.- I

3; In a tax-making machine, the combine tion'bf a' rectangular anvil, two pivotally held. j aws "adapted" to force metal binding about a part of-the anvilypivotally held fingers movable withthe'jaws and adapted to hold the binding inthe jaws during thereciproca tory movementthereof, means for automatically releasingthe lingers, and lap per mechanism:ha vingtwo jaws movable to ward and; from 7 each other and at right angles tothe'movement of the. first-mentioned jaws andfadapted to bend: the metal binding on the remainingside of the anvil. I 4; Ina 'box maki'ng'machine, the coinbination of arectan gular anvil, a: cross-head,

twojawsipivotallymounted on said "cross"- head and adapted" to "force metal: binding about threesides of the anvil, {cutting mechani'sm,'ir efairsfor initiallyholdin'g the metal binding -in-"said' jaws; pivotally "held'ffing'ers thebinding in the" j aws during the reciprocator'y movement thereof, means for autometiqell m l a the g pi echa i maying are jaws movable toward a 'id frojn "each'fother. landi at right angles at the" movement of the first mentioned jaws and adapted to bend the metal binding on the remaining side of the anvil.

5. In a box-making machine, the combination of a substantially rectangular anvil, two supporting frame members, a reciprocatory cross-head movable between said members, levers pivotally mounted on said crosshead, adjustable guides for a part of said levers, a center member, jaws pivotally held to said center member and to said levers, springs normally forcing the jaws in one direction, means for initially holding the binding in the jaws, means for retaining the binding in the jaws during the reciprocatory movement of the cross-head, two oppositely movable jaws movable toward the anvil adapted to fold the ends of the binding about one part of the anvil and to cause the ends to overlap, and guides interposed between the first-mentioned jaws and the lastmentioned jaws to prevent the binding during the initial folding about the anvil being interfered with by the last-mentioned jaws.

6. In a box-making machine, the combination of a substantially rectangular anvil, a reciprocatory cross-head, levers pivotally mounted on said cross-head, stationary guides engaging a part of said levers, a center member, jaws pivotally held to said center member and to said levers, springs normally forcing the jaws in one direction tending to keep said jaws and the center member in alinement, stops for the center member and the cross-head, means for initially holding the binding in the jaws, means for retaining the binding in the jaws during the reciprocatory movement of the cross-head,

two oppositely movable jaws movable to-v ward the anvil adapted to fold the ends of the binding about one part of the anvil, and guides interposed between the first-mentioned jaws and the last-mentioned jaws to prevent the binding during the initial folding about the anvil being interfered with by the last-mentioned jaws, said guides having a part thereof overlying said last-mentioned jaws when in their normal position.

7 In a box-making machine, the combina- Gopies of this patent may be obtained for tion of a substantially rectangular anvil, supporting means, a cross-head movable in said supporting means, levers pivotally mounted on said cross-head, guides engaging a part of said levers along which the levers travel, means cooperating with the levers to fold binding metal about a part of the anvil, and means for bending the binding about the rest of said anvil.

8. In a box-making machine, the combination of a substantially rectangular anvil, supporting frame members, a reciprocatory cross-head movable between said members, levers pivotally mounted on said cross-head, guides for a part of said levers, a center member, jaws pivotally held to said center member and to said levers, springs normally forcing the jaws in one direction, means for initially holding the binding in the jaws, means for retaining the binding in the jaws during the reciprocatory movement of the cross-head, means movable toward the anvil adapted to fold the ends of the binding about one part of the anvil and to cause the ends to overlap, and guides interposed between the first-mentioncd jaws and the lastmentioned means.

9. In a box-making machine, the combination of a substantially rectangular anvil, supporting frame members, a cr0ss-head movable between said members, levers pivotally mounted on said cross-head, guides for a part of said levers, a. center member, jaws pivotally held to said center member and to said levers, springs normally forcing the jaws in one direction, a back stop adapted to engage the center member, means for initially holding the binding in the jaws, means for retaining the binding in the jaws during the reciprocatory movement of the cross-head, and two oppositely movable jaws movable toward the anvil adapted to fold the ends of the binding about one part of the anvil and to cause the ends to overlap.

This specification signed this 14th day of June, A. D. 1915.

CHARLES BURNHAM.

five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

